Touch controller and touch identification method

Abstract

A touch controller including an analog front-end circuit, an analog-to-digital converter circuit, a first demodulator circuit, a second demodulator circuit, and a processor circuit. The analog front-end circuit receives a touch sensing signal from a touch display panel. The touch sensing signal includes a first coded signal corresponding to a first user. The analog-to-digital converter circuit converts the touch sensing signal into a digital signal. The first demodulator circuit and the second demodulator circuit respectively demodulate the digital signal to obtain a first touch raw data corresponding to the first user and a second touch raw data corresponding to a second user. The processor circuit generates a first report data and a second report data according to the first touch raw data and the second touch raw data respectively. The processor circuit identifies whether a current touch behavior is that of the first user according to the first coded signal.

Dependencies are inferred from the claim text.